Note 10 - Equity Compensation (Detail) - Stock Options (USD $)	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Exercisable - Shares	1,682,300	1,403,525
Exercisable - Weighted Average Exercise Price (in Dollars per share)	$ 11.28	$ 12.15
Exercisable - Weighted Average Remaining Contractual Term	4 years 292 days	5 years 146 days
Exercisable - Aggregate Instrinsic Value (in Dollars)	$ 339,741	$ 241,272
Granted - Shares	414,750	36,000
Outstanding - Shares	2,392,775
Beginning of Period [Member]
Outstanding - Shares	2,006,250
Outstanding - Weighted Average Exercise Price (in Dollars per share)	$ 10.64
Outstanding - Weighted Average Remaining Contractual Term	5 years 292 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)	654,747
Granted - Shares	414,750	36,000
Granted - Weighted Average Exercise Price (in Dollars per share)	$ 6.58	$ 7.13
Forfeitures - Shares	(19,425)	(138,814)
Forfeitures - Weighted Average Exercise Price (in Dollars per share)	$ 16.57	$ 12.30
Expirations - Shares	(300)	(3,000)
Expirations - Weighted Average Exercise Price (in Dollars per share)	$ 12.58	$ 7.56
Exercised - Shares	(8,500)	(2,000)
Exercised - Weighted Average Exercise Price (in Dollars per share)	$ 5.53	$ 5.21
Outstanding - Shares		2,123,939
Outstanding - Weighted Average Exercise Price (in Dollars per share)		$ 10.80
Outstanding - Weighted Average Remaining Contractual Term	5 years 292 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)		955,401
End of Period [Member]
Outstanding - Weighted Average Remaining Contractual Term	5 years 328 days	6 years 36 days
Outstanding - Shares	2,392,775	2,016,125
Outstanding - Weighted Average Exercise Price (in Dollars per share)	$ 9.91	$ 10.64
Outstanding - Weighted Average Remaining Contractual Term	5 years 328 days	6 years 36 days
Outstanding - Aggregate Intrinsic Value (in Dollars)	$ 761,064	$ 737,757